Heavy rainfall has escalated landslide activity in Gyalshing district, forcing authorities to evacuate 128 residents from vulnerable dwellings in Rimbi and sparking relief and restoration operations, officials said on Tuesday.
Evacuations and relief
The Sikkim State Disaster Management Authority reported that landslides were recorded in Singlitam and Rimbi since 12 September. District authorities carried out precautionary evacuations after intensified rain and localised flooding on 14 September.
Initial measures saw 18 people from four houses moved to relatives’ homes, but the operation was expanded. In all, 128 residents from 28 houses were shifted to the Rimbi Gram Panchayat Kendra for shelter. At Singlitam, seven families directly affected by the slide have been accommodated at a relief centre; the centre presently houses more than 33 people, including children and older residents, who are being provided with food and essential supplies.
Sites of concern and infrastructure damage
Officials identified Mandir Point as the principal landslide zone, with lower-lying areas of Rimbi Ward still at risk of further slope failures. Debris has accumulated in the NiK Kholsa stream and flowing water has been carrying loose material towards Rimbi village.
The surge of water and debris has washed away a reinforced cement concrete bridge and obstructed natural watercourses, creating the danger of a sudden release of accumulated water and muck during future heavy rain. The Rimbi River has reportedly changed course and is eroding the roadside flank, officials said.
Response and mitigation work
District officials, supported by other government departments, have been maintaining round-the-clock surveillance while conducting relief, safety and restoration work. Debris clearance and road restoration operations are ongoing.
To improve monitoring, lighting has been installed at the Singlitam landslide site. Temporary access measures include plans to build a bamboo bridge; work on this structure was scheduled to begin on 15 September to assist local movement until permanent repairs are completed. In addition, the state government is constructing a Bailey bridge at a higher location after the main road was washed away on the night of 14 May.
"The principal landslide zone has been identified as Mandir Point, while lower-lying parts of Rimbi Ward remain at risk of further slope failures," officials said.
Immediate hazards and public precautions
Authorities warned that blockages in streams and the altered course of the Rimbi River increase the risk of flash releases of water and debris if heavy rain persists. The accumulation of loose material in the NiK Kholsa stream and the washed-away bridge compound the danger to residents and to road connectivity in the area.
- Evacuated: 128 residents from 28 houses moved to Rimbi Gram Panchayat Kendra.
- Relief centre: Singlitam shelter hosting over 33 people with food and essentials.
- Infrastructure: Reinforced cement concrete bridge washed away; road damage and ongoing debris clearance.
- Mitigation: Lighting installed for monitoring; temporary bamboo bridge works to begin; Bailey bridge construction under way at a higher site.
| Location | Issue | Action |
|---|---|---|
| Rimbi (Mandir Point) | Principal landslide zone; slope failure risk | Evacuations; residents sheltered at Gram Panchayat Kendra |
| Singlitam | Household impact; people displaced | Relief centre established; lighting for monitoring |
| NiK Kholsa stream | Debris accumulation; water transporting loose material | Debris clearance; road restoration |
Wider implications and ongoing monitoring
Officials emphasised continuous surveillance of slopes and waterways as restoration work proceeds. The combination of saturated ground, obstructed drainage channels and altered river paths makes Rimbi and nearby areas particularly vulnerable to further incidents if heavy precipitation continues.
District departments and response teams have been coordinating relief distribution and safety operations. The focus in the immediate term is to keep affected people in secure shelter, clear debris to restore essential movement and stabilise critical access points until more durable repairs, including the Bailey bridge, are completed.
Authorities have not reported fatalities or injuries in the Rimbi-Singlitam incidents to date and have urged residents in low-lying and slope-adjacent areas to follow evacuation advisories and to avoid crossing obstructed watercourses until the flow is restored and debris cleared.
